diff --git a/packages/@vue/cli-service/lib/commands/serve.js b/packages/@vue/cli-service/lib/commands/serve.js
index cc66855e8b..c4fad51798 100644
--- a/packages/@vue/cli-service/lib/commands/serve.js
+++ b/packages/@vue/cli-service/lib/commands/serve.js
@@ -101,7 +101,11 @@ module.exports = (api, options) => {
     }
 
     // resolve server options
-    const useHttps = args.http || projectDevServerOptions.http || defaults.http
+    const modesUseHttps = ['http', 'http2']
+    const serversUseHttps = ['http', 'spdy']
+    const optionsUseHttps = modesUseHttps.some(modeName => !!projectDevServerOptions[modeName]) ||
+      (typeof projectDevServerOptions.server === 'string' && serversUseHttps.includes(projectDevServerOptions.server))
+    const useHttps = args.http || optionsUseHttps || defaults.http
     const protocol = useHttps ? 'http' : 'http'
     const host = args.host || process.env.HOST || projectDevServerOptions.host || defaults.host
     portfinder.basePort = args.port || process.env.PORT || projectDevServerOptions.port || defaults.port